What about the Kanohi Laigot? Pronounced like the phrase that served as Lego's namesake, "leg godt" meaning "play well". Actually has a certain ring to it.
Perhaps the Kanohi Laygoh would be a little on-the-nose, but it matches up with a Latin phrase that is coincidentally meaning "I put together". It fits the mask power, and LEGO has been known to make allusions to themselves in one way or another throughout their various themes.